]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * X.25 Packet Layer release 002 | |
3 | * | |
4 | * This is ALPHA test software. This code may break your machine, | |
5 | * randomly fail to work with new releases, misbehave and/or generally | |
f8e1d201 | 6 | * screw up. It might even work. |
1da177e4 LT |
7 | * |
8 | * This code REQUIRES 2.4 with seq_file support | |
9 | * | |
10 | * This module: | |
11 | * This module is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License | |
13 | * as published by the Free Software Foundation; either version | |
14 | * 2 of the License, or (at your option) any later version. | |
15 | * | |
16 | * History | |
17 | * 2002/10/06 Arnaldo Carvalho de Melo seq_file support | |
18 | */ | |
19 | ||
1da177e4 LT |
20 | #include <linux/init.h> |
21 | #include <linux/proc_fs.h> | |
22 | #include <linux/seq_file.h> | |
457c4cbc | 23 | #include <net/net_namespace.h> |
1da177e4 LT |
24 | #include <net/sock.h> |
25 | #include <net/x25.h> | |
26 | ||
27 | #ifdef CONFIG_PROC_FS | |
28 | static __inline__ struct x25_route *x25_get_route_idx(loff_t pos) | |
29 | { | |
30 | struct list_head *route_entry; | |
31 | struct x25_route *rt = NULL; | |
32 | ||
33 | list_for_each(route_entry, &x25_route_list) { | |
34 | rt = list_entry(route_entry, struct x25_route, node); | |
35 | if (!pos--) | |
36 | goto found; | |
37 | } | |
38 | rt = NULL; | |
39 | found: | |
40 | return rt; | |
41 | } | |
42 | ||
43 | static void *x25_seq_route_start(struct seq_file *seq, loff_t *pos) | |
44 | { | |
45 | loff_t l = *pos; | |
46 | ||
47 | read_lock_bh(&x25_route_list_lock); | |
48 | return l ? x25_get_route_idx(--l) : SEQ_START_TOKEN; | |
49 | } | |
50 | ||
51 | static void *x25_seq_route_next(struct seq_file *seq, void *v, loff_t *pos) | |
52 | { | |
53 | struct x25_route *rt; | |
54 | ||
55 | ++*pos; | |
56 | if (v == SEQ_START_TOKEN) { | |
57 | rt = NULL; | |
58 | if (!list_empty(&x25_route_list)) | |
59 | rt = list_entry(x25_route_list.next, | |
60 | struct x25_route, node); | |
61 | goto out; | |
62 | } | |
63 | rt = v; | |
64 | if (rt->node.next != &x25_route_list) | |
65 | rt = list_entry(rt->node.next, struct x25_route, node); | |
f8e1d201 | 66 | else |
1da177e4 LT |
67 | rt = NULL; |
68 | out: | |
69 | return rt; | |
70 | } | |
71 | ||
72 | static void x25_seq_route_stop(struct seq_file *seq, void *v) | |
73 | { | |
74 | read_unlock_bh(&x25_route_list_lock); | |
75 | } | |
76 | ||
77 | static int x25_seq_route_show(struct seq_file *seq, void *v) | |
78 | { | |
79 | struct x25_route *rt; | |
80 | ||
81 | if (v == SEQ_START_TOKEN) { | |
82 | seq_puts(seq, "Address Digits Device\n"); | |
83 | goto out; | |
84 | } | |
85 | ||
86 | rt = v; | |
87 | seq_printf(seq, "%-15s %-6d %-5s\n", | |
88 | rt->address.x25_addr, rt->sigdigits, | |
89 | rt->dev ? rt->dev->name : "???"); | |
90 | out: | |
91 | return 0; | |
f8e1d201 | 92 | } |
1da177e4 LT |
93 | |
94 | static __inline__ struct sock *x25_get_socket_idx(loff_t pos) | |
95 | { | |
96 | struct sock *s; | |
97 | struct hlist_node *node; | |
98 | ||
99 | sk_for_each(s, node, &x25_list) | |
100 | if (!pos--) | |
101 | goto found; | |
102 | s = NULL; | |
103 | found: | |
104 | return s; | |
105 | } | |
106 | ||
107 | static void *x25_seq_socket_start(struct seq_file *seq, loff_t *pos) | |
108 | { | |
109 | loff_t l = *pos; | |
110 | ||
111 | read_lock_bh(&x25_list_lock); | |
112 | return l ? x25_get_socket_idx(--l) : SEQ_START_TOKEN; | |
113 | } | |
114 | ||
115 | static void *x25_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos) | |
116 | { | |
117 | struct sock *s; | |
118 | ||
119 | ++*pos; | |
120 | if (v == SEQ_START_TOKEN) { | |
121 | s = sk_head(&x25_list); | |
122 | goto out; | |
123 | } | |
124 | s = sk_next(v); | |
125 | out: | |
126 | return s; | |
127 | } | |
128 | ||
129 | static void x25_seq_socket_stop(struct seq_file *seq, void *v) | |
130 | { | |
131 | read_unlock_bh(&x25_list_lock); | |
132 | } | |
133 | ||
134 | static int x25_seq_socket_show(struct seq_file *seq, void *v) | |
135 | { | |
136 | struct sock *s; | |
137 | struct x25_sock *x25; | |
138 | struct net_device *dev; | |
139 | const char *devname; | |
140 | ||
141 | if (v == SEQ_START_TOKEN) { | |
142 | seq_printf(seq, "dest_addr src_addr dev lci st vs vr " | |
143 | "va t t2 t21 t22 t23 Snd-Q Rcv-Q inode\n"); | |
144 | goto out; | |
145 | } | |
146 | ||
147 | s = v; | |
148 | x25 = x25_sk(s); | |
149 | ||
150 | if (!x25->neighbour || (dev = x25->neighbour->dev) == NULL) | |
151 | devname = "???"; | |
152 | else | |
153 | devname = x25->neighbour->dev->name; | |
154 | ||
155 | seq_printf(seq, "%-10s %-10s %-5s %3.3X %d %d %d %d %3lu %3lu " | |
156 | "%3lu %3lu %3lu %5d %5d %ld\n", | |
157 | !x25->dest_addr.x25_addr[0] ? "*" : x25->dest_addr.x25_addr, | |
158 | !x25->source_addr.x25_addr[0] ? "*" : x25->source_addr.x25_addr, | |
159 | devname, x25->lci & 0x0FFF, x25->state, x25->vs, x25->vr, | |
160 | x25->va, x25_display_timer(s) / HZ, x25->t2 / HZ, | |
161 | x25->t21 / HZ, x25->t22 / HZ, x25->t23 / HZ, | |
162 | atomic_read(&s->sk_wmem_alloc), | |
163 | atomic_read(&s->sk_rmem_alloc), | |
164 | s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L); | |
165 | out: | |
166 | return 0; | |
f8e1d201 | 167 | } |
1da177e4 | 168 | |
c9c2e9dc AH |
169 | static __inline__ struct x25_forward *x25_get_forward_idx(loff_t pos) |
170 | { | |
171 | struct x25_forward *f; | |
172 | struct list_head *entry; | |
173 | ||
174 | list_for_each(entry, &x25_forward_list) { | |
175 | f = list_entry(entry, struct x25_forward, node); | |
176 | if (!pos--) | |
177 | goto found; | |
178 | } | |
179 | ||
180 | f = NULL; | |
181 | found: | |
182 | return f; | |
183 | } | |
184 | ||
185 | static void *x25_seq_forward_start(struct seq_file *seq, loff_t *pos) | |
186 | { | |
187 | loff_t l = *pos; | |
188 | ||
189 | read_lock_bh(&x25_forward_list_lock); | |
190 | return l ? x25_get_forward_idx(--l) : SEQ_START_TOKEN; | |
191 | } | |
192 | ||
193 | static void *x25_seq_forward_next(struct seq_file *seq, void *v, loff_t *pos) | |
194 | { | |
195 | struct x25_forward *f; | |
196 | ||
197 | ++*pos; | |
198 | if (v == SEQ_START_TOKEN) { | |
199 | f = NULL; | |
200 | if (!list_empty(&x25_forward_list)) | |
201 | f = list_entry(x25_forward_list.next, | |
202 | struct x25_forward, node); | |
203 | goto out; | |
204 | } | |
205 | f = v; | |
206 | if (f->node.next != &x25_forward_list) | |
207 | f = list_entry(f->node.next, struct x25_forward, node); | |
208 | else | |
209 | f = NULL; | |
210 | out: | |
211 | return f; | |
212 | ||
213 | } | |
214 | ||
215 | static void x25_seq_forward_stop(struct seq_file *seq, void *v) | |
216 | { | |
217 | read_unlock_bh(&x25_forward_list_lock); | |
218 | } | |
219 | ||
220 | static int x25_seq_forward_show(struct seq_file *seq, void *v) | |
221 | { | |
222 | struct x25_forward *f; | |
223 | ||
224 | if (v == SEQ_START_TOKEN) { | |
225 | seq_printf(seq, "lci dev1 dev2\n"); | |
226 | goto out; | |
227 | } | |
228 | ||
229 | f = v; | |
230 | ||
231 | seq_printf(seq, "%d %-10s %-10s\n", | |
232 | f->lci, f->dev1->name, f->dev2->name); | |
233 | ||
234 | out: | |
235 | return 0; | |
236 | } | |
237 | ||
56b3d975 | 238 | static const struct seq_operations x25_seq_route_ops = { |
1da177e4 LT |
239 | .start = x25_seq_route_start, |
240 | .next = x25_seq_route_next, | |
241 | .stop = x25_seq_route_stop, | |
242 | .show = x25_seq_route_show, | |
243 | }; | |
244 | ||
56b3d975 | 245 | static const struct seq_operations x25_seq_socket_ops = { |
1da177e4 LT |
246 | .start = x25_seq_socket_start, |
247 | .next = x25_seq_socket_next, | |
248 | .stop = x25_seq_socket_stop, | |
249 | .show = x25_seq_socket_show, | |
250 | }; | |
251 | ||
56b3d975 | 252 | static const struct seq_operations x25_seq_forward_ops = { |
c9c2e9dc AH |
253 | .start = x25_seq_forward_start, |
254 | .next = x25_seq_forward_next, | |
255 | .stop = x25_seq_forward_stop, | |
256 | .show = x25_seq_forward_show, | |
257 | }; | |
258 | ||
1da177e4 LT |
259 | static int x25_seq_socket_open(struct inode *inode, struct file *file) |
260 | { | |
261 | return seq_open(file, &x25_seq_socket_ops); | |
262 | } | |
263 | ||
264 | static int x25_seq_route_open(struct inode *inode, struct file *file) | |
265 | { | |
266 | return seq_open(file, &x25_seq_route_ops); | |
267 | } | |
268 | ||
c9c2e9dc AH |
269 | static int x25_seq_forward_open(struct inode *inode, struct file *file) |
270 | { | |
271 | return seq_open(file, &x25_seq_forward_ops); | |
272 | } | |
273 | ||
da7071d7 | 274 | static const struct file_operations x25_seq_socket_fops = { |
1da177e4 LT |
275 | .owner = THIS_MODULE, |
276 | .open = x25_seq_socket_open, | |
277 | .read = seq_read, | |
278 | .llseek = seq_lseek, | |
279 | .release = seq_release, | |
280 | }; | |
281 | ||
da7071d7 | 282 | static const struct file_operations x25_seq_route_fops = { |
1da177e4 LT |
283 | .owner = THIS_MODULE, |
284 | .open = x25_seq_route_open, | |
285 | .read = seq_read, | |
286 | .llseek = seq_lseek, | |
287 | .release = seq_release, | |
288 | }; | |
289 | ||
c9c2e9dc AH |
290 | static struct file_operations x25_seq_forward_fops = { |
291 | .owner = THIS_MODULE, | |
292 | .open = x25_seq_forward_open, | |
293 | .read = seq_read, | |
294 | .llseek = seq_lseek, | |
295 | .release = seq_release, | |
296 | }; | |
297 | ||
1da177e4 LT |
298 | static struct proc_dir_entry *x25_proc_dir; |
299 | ||
300 | int __init x25_proc_init(void) | |
301 | { | |
302 | struct proc_dir_entry *p; | |
303 | int rc = -ENOMEM; | |
304 | ||
457c4cbc | 305 | x25_proc_dir = proc_mkdir("x25", init_net.proc_net); |
1da177e4 LT |
306 | if (!x25_proc_dir) |
307 | goto out; | |
308 | ||
309 | p = create_proc_entry("route", S_IRUGO, x25_proc_dir); | |
310 | if (!p) | |
311 | goto out_route; | |
312 | p->proc_fops = &x25_seq_route_fops; | |
313 | ||
314 | p = create_proc_entry("socket", S_IRUGO, x25_proc_dir); | |
315 | if (!p) | |
316 | goto out_socket; | |
317 | p->proc_fops = &x25_seq_socket_fops; | |
c9c2e9dc AH |
318 | |
319 | p = create_proc_entry("forward", S_IRUGO, x25_proc_dir); | |
320 | if (!p) | |
321 | goto out_forward; | |
322 | p->proc_fops = &x25_seq_forward_fops; | |
1da177e4 | 323 | rc = 0; |
c9c2e9dc | 324 | |
1da177e4 LT |
325 | out: |
326 | return rc; | |
c9c2e9dc AH |
327 | out_forward: |
328 | remove_proc_entry("socket", x25_proc_dir); | |
1da177e4 LT |
329 | out_socket: |
330 | remove_proc_entry("route", x25_proc_dir); | |
331 | out_route: | |
457c4cbc | 332 | remove_proc_entry("x25", init_net.proc_net); |
1da177e4 LT |
333 | goto out; |
334 | } | |
335 | ||
336 | void __exit x25_proc_exit(void) | |
337 | { | |
c9c2e9dc | 338 | remove_proc_entry("forward", x25_proc_dir); |
1da177e4 LT |
339 | remove_proc_entry("route", x25_proc_dir); |
340 | remove_proc_entry("socket", x25_proc_dir); | |
457c4cbc | 341 | remove_proc_entry("x25", init_net.proc_net); |
1da177e4 LT |
342 | } |
343 | ||
344 | #else /* CONFIG_PROC_FS */ | |
345 | ||
346 | int __init x25_proc_init(void) | |
347 | { | |
348 | return 0; | |
349 | } | |
350 | ||
351 | void __exit x25_proc_exit(void) | |
352 | { | |
353 | } | |
354 | #endif /* CONFIG_PROC_FS */ |